package com.thinkbiganalytics.spark.file.metadata

/*-
 * #%L
 * spark-file-metadata-core
 * %%
 * Copyright (C) 2017 - 2018 ThinkBig Analytics
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import com.thinkbiganalytics.kylo.metadata.file.FileMetadata
import com.thinkbiganalytics.kylo.metadata.file.service.FileMetadataService
import org.apache.spark.input.PortableDataStream

/**
  * Extracts metadata from the stream and returns a FileMetadata object
  */
class MetadataExtractor extends Serializable {

  def extract(
                 file: (String, PortableDataStream)
             ): (FileMetadata) = {
    val fileMetadata = FileMetadataService.detectFromStream(file._2.open(), file._1);
    (fileMetadata)
  }

}